Soil Hardness Tester

Product Introduction:

Soil compaction, also known as soil hardness or soil solidity or soil penetration resistance. It is generally expressed as the resistance when a metal plunger or probe is pressed into the soil (in kgf/cm ²). Soil compaction refers to the ability of soil to resist external forces, including compaction and fragmentation, and is one aspect of soil properties. In addition, soil physical properties include soil texture, structure, porosity, etc., which involve soil solidity, plasticity, permeability, drainage, water storage capacity, and the difficulty of root penetration.

Soil compaction is composed of soil resistance to shear, compression, and friction forces. It is a composite indicator of soil strength. When a metal plunger or probe is pressed into soil, there are two methods: dynamic load and static load. The measured values of different methods are different, but they are related. The shape of the plunger includes cones, flat heads, spheres, wedges, etc., which also have an impact on the measured values. The measured values of the same method are mainly determined by soil texture, bulk density, and moisture content. The impact of moisture content is the greatest among them.

Application scope:

Soil compaction can predict soil carrying capacity, tillage performance, and resistance to root extension. The size of soil compaction can affect the perforation and growth of crop roots, and is an important soil physical property indicator used to evaluate soil tillage. Tight soil can prevent water infiltration, reduce fertilizer utilization, affect plant root growth, and lead to crop yield reduction.

Execution standards: 

LY/T 1223-1999 Determination of Solidness of Forest Soil

Product features:

1. LED LCD display: The LED LCD display comes with a blue backlight mode to read data at a glance

2. Real time mode/peak mode automatic switching

3. Multi functional button: Three units can be freely switched with one click (Newton N, kilogram KGF, pound LBF)

4. Multi functional measurement: positive and negative bidirectional testing, making it more convenient for users. The LED lights up yellow during operation

5. Upper and lower limit warning, data storage

6. Flip screen display: convenient for measuring compactness and can be viewed from both front and back

Technical Parameter:

1. Display: LCD display screen with digital reading

2. Processor: 8-bit high-performance microprocessor

3. Language: English

4. Probe rod: stainless steel diameter 10 * 300mm (with a scale of 1mm)

5. Extension rod: stainless steel with a diameter of 10 * 200mm (with a scale of 1mm)

6. Probe: Stainless steel diameter 12.8 * 40mm

7. Range: 0-100 kgf/220.5 lbf/981 N

8. Overload capacity: 120%

9. Error: ± 5N; ± 0.5kgf

10. Repeatability: ± 0.05% F ∙ S

11. Sampling speed: 1000 times/second

12. Screen Flip: Flip measurement values and units up and down for easy measurement

13. Peak alarm: If the force exceeds 110%, an alarm will be triggered

14. Unit conversion (accuracy): kgf (0.1kgf)/lbf (0.1lbf)/N (1N) selectable

15. Detection modes: real-time tracking mode, automatic peak mode, peak mode

16. Automatic shutdown: can be set to automatically power off within 1-60 minutes (default: 10 minutes)

17. One click zeroing

18. Storage function: 999 measurement values

19. Measurement calibration: can be sent for inspection and testing

20. Upper computer (software and data cables need to be purchased separately)

21. Interface: RS-232, USB, DC5.5/2.1

22. Power supply: Input AC220V 50Hz Output: DC15V 250mA

23. Battery: 1100mAh

24. Operating environment: Temperature: 0-40 ℃; Humidity: 20% to 90%

25. Host size: Length 220.5 x Width 78 x Height 32.3mm

26. Host weight: Approximately 520g

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